Vanhu vakanzwisisa ruzivo rwekutanga kuti semiconductor zvinhu zvinogona kuburitsa chiedza makore makumi mashanu apfuura.Muna 1962, Nick Holonyak Jr. weGeneral Electric Company akagadzira yekutanga kushandiswa kwechiedza chinooneka chinobudisa diode.
LED ndiyo chidimbu cheChirungu light emitting diode, chimiro chayo chidimbu che electroluminescent semiconductor material, yakaiswa pasherufu inotungamirirwa, uye yakavharwa ne epoxy resin kumativi ose, kureva, encapsulation yakasimba, kuitira kuti inogona kudzivirira mukati mepakati waya. saka iyo LED ine yakanaka seismic performance.
AIOT hombe data inotenda kuti pakutanga ma LED aishandiswa sechiratidzo chemwenje masosi ezviridzwa nemamita, uye gare gare ma LED emavara akasiyana-siyana akareruka aishandiswa zvakanyanya mumarambi emagetsi emigwagwa uye zviratidziro zvakakura-nzvimbo, izvo zvakaburitsa zvakanaka zvehupfumi nemagariro.Tora 12-inch red traffic light semuenzaniso.MuUnited States, rambi renguva refu, risina simba re140-watt incandescent rakatanga kushandiswa sechiedza, chinobudisa 2000 lumens yechiedza chichena.Mushure mekupfuura nemusefa dzvuku, kurasikirwa kwechiedza kuri 90%, kuchisiya chete mazana maviri lumens emwenje tsvuku.Mumwenje mutsva wakagadzirwa, kambani inoshandisa 18 tsvuku tsvuku dzemwenje dzemwenje, kusanganisira kurasikirwa kwedunhu, iyo yakazara 14 watts yekushandiswa kwesimba, inogona kuburitsa yakafanana mwenje mhedzisiro.Magetsi emagetsi emagetsi zvakare inzvimbo yakakosha ye LED light source application.
Nheyo ye LED
LED (Chiedza Emitting Diode), yakasimba-state semiconductor mudziyo unogona kushandura zvakananga magetsi kuita chiedza.Mwoyo we LED is semiconductor chip, imwe mugumo we chip inosungirirwa kune tsigiro, imwe mugumo ndiyo danda risina kunaka, uye imwe mugumo yakabatanidzwa kune yakanaka pole yemagetsi, kuitira kuti chip yose ivharwe. kuburikidza ne epoxy resin.Iyo semiconductor wafer inoumbwa nezvikamu zviviri, chimwe chikamu iP-type semiconductor, umo maburi anotonga, uye imwe magumo iN-mhando semiconductor, iyo inonyanya kuve maerekitironi.
Asi kana aya maviri semiconductors akabatana, "PN junction" inoumbwa pakati pavo.Kana ikozvino inobata pachipu kuburikidza newaya, maerekitironi anosundirwa kunzvimbo yeP, uko maerekitironi nemakomba zvinosangana, uye zvino anoburitsa simba muchimiro chephotons.Iyi ndiyo musimboti wekubuda kwemwenje we LED.Urefu hwechiedza zvakare ruvara rwechiedza, icho chinotarirwa nechinhu chinoumba "PN junction".
Nguva yekutumira: Aug-27-2021